End-of-combustion guidance equations /Spherical earth/

Explicit guidance and delta guidance are considered with regard to combustion cutoff in self-guided vehicles for the case of a spherical earth. Explicit guidance equations are too complicated to be executed by onboard computers in reasonable time intervals. Delta guidance, however, requires less onboard calculation but necessitates more precise intermediate guidance in order to adjust the actual trajectory to the nominal when close to combustion cutoff.